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THE GARDEN SAGEA library of living things
Trees & woodland lore · Western North Carolina field companion

Leyland cypress

× Hesperotropsis leylandii

Whole tree — × Hesperotropsis leylandii. Species reference; the photographed specimen does not confirm the named variety. Age, pruning, and site affect its shape.
Whole tree — × Hesperotropsis leylandii. Species reference; the photographed specimen does not confirm the named variety. Age, pruning, and site affect its shape.☀ Full sunWhiteTailedEagle ↗ · CC BY-SA 4.0
Photo contextResized and converted to WebP; full original composition retained.

Scale foliage on flattened sprays

Sun Exposure
Full sun
MATURE HEIGHT (FT)
60–70
MATURE WIDTH (FT)
10–15
BLOOM SEASON
Spring
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Get to know this plant.

Identification clue 1

Scale foliage on flattened sprays

Identification clue 2

Fibrous bark

Identification clue 3

Rounded woody seed cones

Diseases & insects in WNC

Problems to recognize in WNC gardens. These are documented susceptibilities, not a local outbreak report or a diagnosis. Weather, elevation and growing conditions change the risk.

Diseases & similar-looking injury

Seiridium and Botryosphaeria cankers can kill branches. Armillaria and Phytophthora root rots are serious concerns, especially on unsuitable sites.

Insects to recognize

Bagworms can cause substantial defoliation.

When to look

Inspect isolated browning branches after drought and look for small bags in early summer.

A useful first step

Check drainage, spacing and drought stress. Seek a diagnosis promptly for spreading branch death; browning has several possible causes.

More growing details

Read the leaves

Closely overlapping scales form feathery sprays. Many cultivated cypresses are similar, so avoid naming the hybrid from foliage alone.

Read the bark

Gray-brown bark becomes fibrous and shallowly furrowed.

Fruit & seed

Round woody cones have shield-like scales; cone production varies among plants.

Winter character

Evergreen sprays help narrow the cypress group when other trees are bare.

Origin & place

An introduced garden species or horticultural hybrid; study it as part of WNC landscapes rather than assume it belongs to the native mountain flora.

WNC Notes

Rapid screen but canker, bagworms, ice, crowding, and ultimate size create high long-term risk.

Sun Exposure

Full sun

MATURE HEIGHT (FT)

60–70

MATURE WIDTH (FT)

10–15

BLOOM SEASON

Spring

BLOOM COLOR

Inconspicuous

FALL / WINTER COLOR

Evergreen

Wet-Soil Tolerance

Moderate

Drought Tolerance

Moderate

LOOK CLOSELY

Two views, a closer look.

Place two photographs beside one another. Compare the overall plant with leaves, flowers, or bark when those views are available. Captions identify what each photograph actually shows. Images are not at the same scale; species references may show different cultivars.

Whole tree — × Hesperotropsis leylandii. Species reference; the photographed specimen does not confirm the named variety. Age, pruning, and site affect its shape.
Whole tree — × Hesperotropsis leylandii. Species reference; the photographed specimen does not confirm the named variety. Age, pruning, and site affect its shape.☀ Full sunWhiteTailedEagle ↗ · CC BY-SA 4.0
Photo contextResized and converted to WebP; full original composition retained.
Leyland cypress scale foliage at close range. The source corrects an earlier arborvitae identification; use spray, cone, and whole-tree characters together.
Leyland cypress scale foliage at close range. The source corrects an earlier arborvitae identification; use spray, cone, and whole-tree characters together.☀ Full sunBenjamin Smith from United States ↗ · CC BY 2.0
Photo contextResized and converted to WebP; no diagnostic content altered.

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